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公开(公告)号:US1484129A
公开(公告)日:1924-02-19
申请号:US62587023
申请日:1923-03-17
Applicant: ALBERT HERMANN , MENZEL CARL A
Inventor: ALBERT HERMANN , MENZEL CARL A
IPC: G01N25/62
CPC classification number: G01N25/62 , Y10S200/40
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公开(公告)号:US2165935A
公开(公告)日:1939-07-11
申请号:US15397437
申请日:1937-07-16
Applicant: MENZEL CARL A
Inventor: MENZEL CARL A
IPC: B01J3/04
CPC classification number: B01J3/04
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公开(公告)号:US2374827A
公开(公告)日:1945-05-01
申请号:US41170541
申请日:1941-09-20
Applicant: MENZEL CARL A
Inventor: MENZEL CARL A
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公开(公告)号:US2171666A
公开(公告)日:1939-09-05
申请号:US15397537
申请日:1937-07-16
Applicant: MENZEL CARL A
Inventor: MENZEL CARL A
IPC: G01B5/30
CPC classification number: G01B5/30
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公开(公告)号:US2121439A
公开(公告)日:1938-06-21
申请号:US15397637
申请日:1937-07-16
Applicant: MENZEL CARL A
Inventor: MENZEL CARL A
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